Flat screen monitor comes up with No Signal

Our flat screen monitor goes "dead" and says "No signal". this happened before, and we swapped it for another one for a couple of weeks, then reconnected it and it was ok. Now it has happened again. Turned the computer and monitor off and on again a few times without any success.

Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.

Attachments: Added items

Related Questions:

OK, you need to boot up in safe Mode, then change your screen resolution, to say 800x600, or 1024x768, this will then allow your monitor to operate, IF this doesn't work, then you will have to swap out, the Monitor and VGA card to find out which one is faulty.

that is the problem of cpu not a monitor to confirm disconnect signal cable and power on. monitor will show "no signal check signal cable" it means that monitor is ok and fault lies in cpu .then open the cpu and disconnect ram and listen the beep. contineus beep should be heard then ram is faulty replace it. if no beep heard then motherboard is faulty .

make sure your cables are tight. make sure you have the correct input selected on your monitor. swap your monitor on the pc with one from a freind that works. this rules out your graphics card and the pc. if all of these are correct you probably have a bad video input on the monitor. you may need it repaired.

This means the monitor believes it's not connected to the computer. Verify the cables first of all. Then try booting in safe mode (F8 key at PC startup) in order to verify that the PC is sending data to the proper video port (you might have a dual VGA / Digital output, for example, and the monitor might be connected to the wrong PC port). Quite often, a "bad signal" will be the same of "no signal"; and you can have a bad signal if the monitor resolution on the PC is set too high. This could happen if you installed a high-resolution capable monitor, and then replaced it with a not-completely-plug-and-play, lower resolution one. The PC would keep sending hi-res signals to a monitor which can neither interpret them, nor tell the PC "please slow down". To check this last possibility, reboot your computer while the monitor is ON. When PCs reboot, they usually drop back to standard VGA signaling, which all monitors understand. If the monitor abruptly comes to life and displays a boot screen, then goes No Signal again after several seconds, you've got a resolution issue; get in Safe Mode with F8 key at boot, and modify the screen properties (right-mouse button on the desktop, then Properties).

If everything else fails, try also connecting the monitor to another PC or laptop, to see if it works there.

t certainly seems like the monitor is not getting a signal. Did this
happen after you changed something, or just on normal boot up?It could be the video card that has failed.Also, check the pins on the connector; sometimes they can get pushed in.If you can, try swapping out the video card or use the monitor on another computer.Good luck,

t certainly seems like the monitor is not getting a signal. Did this
happen after you changed something, or just on normal boot up?It could be the video card that has failed.Also, check the pins on the connector; sometimes they can get pushed in.If you can, try swapping out the video card or use the monitor on another computer.Good luck,

This Problem is Acer(s) Monitors. Though it is a nuisance one fix That has work for many is the Unplugging after it goes back to Good (viewable) screen. I have hooked mine up to an inexpensive Power strip to make it easier for me and just turn off at time indicated above and Viola Simple is as Simple does :)

some how your screen resolution has changed above or below what your monitor can display. you need to boot your computer using another monitor that can work with the resolution your computer has switched to(i used a spare crt monitor when it happened to me) change your resolution in display properties to a normal level like 1027x768, and while the computer is on swap the monitor cables to verify the lcd is working.
It is perfectly safe to unplug the video cable and plug it back in while the computer is turnned on.